openwrt/staging/blogic.git
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Mon, 9 Nov 2009 17:51:15 +0000 (09:51 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Move of_set_property_mutex acquisition outside of devtree_lock grab.
  sparc64: replace parentheses in pmul()
  sparc64: Add a comment about why we only use certain memory barriers these days.

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
Linus Torvalds [Mon, 9 Nov 2009 17:50:55 +0000 (09:50 -0800)]
Merge git://git./linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  Revert "ide: try to use PIO Mode 0 during probe if possible"

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Mon, 9 Nov 2009 17:50:15 +0000 (09:50 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: don't use CIFSGetSrvInodeNumber in is_path_accessible
  cifs: clean up handling when server doesn't consistently support inode numbers

15 years agoMerge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Mon, 9 Nov 2009 17:49:58 +0000 (09:49 -0800)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Replace old style lock initializer
  sh: Account for cache aliases in flush_icache_range()
  sh: unwinder: Fix up invalid PC refetch in dwarf unwinder.
  serial: sh-sci: disable callback typo fix

15 years agoMerge branch 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev
Linus Torvalds [Mon, 9 Nov 2009 17:47:21 +0000 (09:47 -0800)]
Merge branch 'for-linus' of git://linux-m32r.org/git/takata/linux-2.6_dev

* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev:
  m32r: fix arch/m32r/boot/compressed/Makefile

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Mon, 9 Nov 2009 17:30:14 +0000 (09:30 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: snd-aica: declare MODULE_FIRMWARE
  ALSA: hda - Don't initialize CORB/RIRB for single_cmd mode
  ALSA: usb-audio: fix combine_word problem
  sound: Replace old style lock initializer
  ASoC: S3C64XX I2S: Enable audio-bus clock
  ASoC: OMAP: Don't try to set unsupported OMAP_DMA_DATA_BURST_16 on OMAP1
  ALSA: hda, move hp_bseries_system
  sound: Use KERN_WARNING instead of KERN_WARN, which does not exist
  ALSA: intel8x0: Mute External Amplifier by default for another Sony model
  ALSA: hda - Add OLPC XO-1.5 PCI ID
  ALSA: hda - Enable GPIO control for mute LED on HP systems

15 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Mon, 9 Nov 2009 17:28:42 +0000 (09:28 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: sleep: another HP/Compaq DMI entries for init_set_sci_en_on_resume
  ACPI: add DMI entry for SCI_EN resume quirk on HP dv4
  thermal: sysfs-api.txt - document passive attribute for thermal zones
  thermal: sysfs-api.txt - reformat for improved readability
  acpi: thermal: Add EOL to the trip_point_N_type strings
  ACPI: Move dereference after NULL test
  ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."
  ACPI: add __cpuinit to acpi_processor_add()
  acpi-power-meter: Don't leak ACPI error codes to userspace
  eeepc-laptop: don't enable camera at startup if it's already on.
  Revert "eeepc-laptop: Prevent a panic when disabling RT2860 wireless when associated"
  ACPI: clean up video.c boundary checks and types

15 years agosh: Replace old style lock initializer
Thomas Gleixner [Fri, 6 Nov 2009 22:42:05 +0000 (22:42 +0000)]
sh: Replace old style lock initializer

SPIN_LOCK_UNLOCKED is deprecated. Use __SPIN_LOCK_UNLOCKED instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Account for cache aliases in flush_icache_range()
Matt Fleming [Thu, 5 Nov 2009 23:14:39 +0000 (23:14 +0000)]
sh: Account for cache aliases in flush_icache_range()

The icache may also contain aliases so we must account for them just
like we do when manipulating the dcache. We usually get away with
aliases in the icache because the instructions that are read from memory
are read-only, i.e. they never change. However, the place where this
bites us is when the code has been modified.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosparc: Move of_set_property_mutex acquisition outside of devtree_lock grab.
David S. Miller [Mon, 9 Nov 2009 01:41:20 +0000 (17:41 -0800)]
sparc: Move of_set_property_mutex acquisition outside of devtree_lock grab.

Otherwise we try to sleep with preemption disabled, etc.

Noticed by Thomas Gleixner.

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agom32r: fix arch/m32r/boot/compressed/Makefile
Hirokazu Takata [Sun, 8 Nov 2009 23:51:35 +0000 (08:51 +0900)]
m32r: fix arch/m32r/boot/compressed/Makefile

- Fix a comment string
- Fix a typo of $(suffix-y)

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
15 years agosparc64: replace parentheses in pmul()
Roel Kluin [Sun, 8 Nov 2009 08:26:56 +0000 (00:26 -0800)]
sparc64: replace parentheses in pmul()

`>>' has a higher precedence than `?' so src2 evaluated to
either 16 or 0 dependent on the bits set in rs2.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Sun, 8 Nov 2009 08:16:15 +0000 (09:16 +0100)]
Merge branch 'fix/hda' into for-linus

15 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Sun, 8 Nov 2009 08:16:06 +0000 (09:16 +0100)]
Merge branch 'fix/misc' into for-linus

15 years agoALSA: snd-aica: declare MODULE_FIRMWARE
Ben Hutchings [Sat, 7 Nov 2009 22:13:39 +0000 (22:13 +0000)]
ALSA: snd-aica: declare MODULE_FIRMWARE

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Don't initialize CORB/RIRB for single_cmd mode
Takashi Iwai [Sat, 7 Nov 2009 08:49:04 +0000 (09:49 +0100)]
ALSA: hda - Don't initialize CORB/RIRB for single_cmd mode

So far, CORB/RIRB still remains even if the driver is switched to the
single_cmd mode.  The specification says that this should be disabled,
but I hoped this isn't the case; indeed most devices worked together with
CORB/RIRB.

However, Poulsbo (US15W) seems problematic with this setup, and it
requires to disable CORB/RIRB when single_cmd is used.

Now this patch disables CORB/RIRB initialization when the single_cmd
mode is used.  Also the unsolicited event is disabled because it can't
work without RIRB.

Reported-and-tested-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: usb-audio: fix combine_word problem
Julian Anastasov [Fri, 6 Nov 2009 21:44:53 +0000 (23:44 +0200)]
ALSA: usb-audio: fix combine_word problem

Fix combine_word problem where first octet is not
read properly. The only affected place seems to be the
INPUT_TERMINAL type. Before now, sound controls can be created
with the output terminal's name which is a fallback mechanism
used only for unknown input terminal types. For example,
Line can wrongly appear as Speaker. After the change it
should appear as Line.

The side effect of this change can be that users
can expect the wrong control name in their scripts or
programs while now we return the correct one.

Probably, these defines should use get_unaligned_le16 and
friends.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agosound: Replace old style lock initializer
Thomas Gleixner [Fri, 6 Nov 2009 22:41:29 +0000 (22:41 +0000)]
sound: Replace old style lock initializer

SPIN_LOCK_UNLOCKED is deprecated. Use __SPIN_LOCK_UNLOCKED instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agocifs: don't use CIFSGetSrvInodeNumber in is_path_accessible
Jeff Layton [Fri, 6 Nov 2009 19:18:49 +0000 (14:18 -0500)]
cifs: don't use CIFSGetSrvInodeNumber in is_path_accessible

Because it's lighter weight, CIFS tries to use CIFSGetSrvInodeNumber to
verify the accessibility of the root inode and then falls back to doing a
full QPathInfo if that fails with -EOPNOTSUPP. I have at least a report
of a server that returns NT_STATUS_INTERNAL_ERROR rather than something
that translates to EOPNOTSUPP.

Rather than trying to be clever with that call, just have
is_path_accessible do a normal QPathInfo. That call is widely
supported and it shouldn't increase the overhead significantly.

Cc: Stable <stable@kernel.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
15 years agocifs: clean up handling when server doesn't consistently support inode numbers
Jeff Layton [Fri, 6 Nov 2009 19:18:29 +0000 (14:18 -0500)]
cifs: clean up handling when server doesn't consistently support inode numbers

It's possible that a server will return a valid FileID when we query the
FILE_INTERNAL_INFO for the root inode, but then zeroed out inode numbers
when we do a FindFile with an infolevel of
SMB_FIND_FILE_ID_FULL_DIR_INFO.

In this situation turn off querying for server inode numbers, generate a
warning for the user and just generate an inode number using iunique.
Once we generate any inode number with iunique we can no longer use any
server inode numbers or we risk collisions, so ensure that we don't do
that in cifs_get_inode_info either.

Cc: Stable <stable@kernel.org>
Reported-by: Timothy Normand Miller <theosib@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
15 years agoASoC: S3C64XX I2S: Enable audio-bus clock
Jassi Brar [Fri, 6 Nov 2009 09:00:24 +0000 (18:00 +0900)]
ASoC: S3C64XX I2S: Enable audio-bus clock

Added the missing clk_enable after acquiring the 'audio-bus' clock.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
15 years agoASoC: OMAP: Don't try to set unsupported OMAP_DMA_DATA_BURST_16 on OMAP1
Janusz Krzysztofik [Wed, 21 Oct 2009 21:10:03 +0000 (23:10 +0200)]
ASoC: OMAP: Don't try to set unsupported OMAP_DMA_DATA_BURST_16 on OMAP1

After DMA burst mode has been introduced in sound/soc/omap/omap-pcm.c,
omap_pcm_prepare() unconditionally calls:

        omap_set_dma_src_burst_mode(prtd->dma_ch, OMAP_DMA_DATA_BURST_16);
        omap_set_dma_dest_burst_mode(prtd->dma_ch, OMAP_DMA_DATA_BURST_16);

Current implementation of those two functions found in
arch/arm/plat-ompa/dma.c doesn't support OMAP_DMA_DATA_BURST_16 on OMAP1 at
all, so they both end with BUG() on that machine. That results in
ASoC being completely unusable, at least on my OMAP5910 based Amstrad Delta.

The patch corrects the problem by not calling those two functions when run on
OMAP1 class based machines.

Created against linux-2.6.32-rc5.
Tested on Amstrad Delta.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
15 years agoRevert "ide: try to use PIO Mode 0 during probe if possible"
David S. Miller [Fri, 6 Nov 2009 12:52:50 +0000 (04:52 -0800)]
Revert "ide: try to use PIO Mode 0 during probe if possible"

This reverts commit 6029336426a2b43e4bc6f4a84be8789a047d139e.

Ok, we really do need to revert this, even with Bart's sis5513.c
fix in there.

The problem is that several driver's ->set_pio_mode() method
depends upon the drive->media type being set properly.  Most
of them use this to enable prefetching, which can only be done
for disk media.

But the commit being reverted here calls ->set_pio_mode() before
it's setup.  Actually it considers everything disk because that
is the default media type set by ide_port_init_devices_data().

The set of drivers that depend upon the media type in their
->set_pio_method() are:

drivers/ide/alim15x3.c
drivers/ide/it8172.c
drivers/ide/it8213.c
drivers/ide/pdc202xx_old.c
drivers/ide/piix.c
drivers/ide/qd65xx.c
drivers/ide/sis5513.c
drivers/ide/slc90e66.c

And it is possible that we could fix this by guarding the prefetching
and other media dependent setting changes with a test on
IDE_PFLAG_PROBING in hwif->port_flags, that's simply too risky for
2.6.32-rcX and -stable.

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosh: unwinder: Fix up invalid PC refetch in dwarf unwinder.
Paul Mundt [Fri, 6 Nov 2009 08:23:33 +0000 (17:23 +0900)]
sh: unwinder: Fix up invalid PC refetch in dwarf unwinder.

The dwarf unwinder presently attempts to provide a sane PC value if none
is provided, however the logic is broken and cases where a previous valid
dwarf frame exists along with a bogus PC value can still proceed. This
fixes up the test and prevents the unwinder from blowing up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agoserial: sh-sci: disable callback typo fix
Magnus Damm [Thu, 5 Nov 2009 14:34:57 +0000 (14:34 +0000)]
serial: sh-sci: disable callback typo fix

Avoid invoking the disable callback in case of NULL.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agoMerge branch 'bugzilla-13449' into release
Len Brown [Fri, 6 Nov 2009 06:45:11 +0000 (01:45 -0500)]
Merge branch 'bugzilla-13449' into release

15 years agosparc64: Add a comment about why we only use certain memory barriers these days.
David S. Miller [Fri, 6 Nov 2009 04:24:33 +0000 (20:24 -0800)]
sparc64: Add a comment about why we only use certain memory barriers these days.

Based upon feedback from Mathieu Desnoyers.

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoACPI: sleep: another HP/Compaq DMI entries for init_set_sci_en_on_resume
Vaibhav Verma [Fri, 6 Nov 2009 04:13:36 +0000 (23:13 -0500)]
ACPI: sleep: another HP/Compaq DMI entries for init_set_sci_en_on_resume

http://bugzilla.kernel.org/show_bug.cgi?id=13745

Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: add DMI entry for SCI_EN resume quirk on HP dv4
Gustavo Maciel Dias Vieira [Mon, 19 Oct 2009 11:41:53 +0000 (09:41 -0200)]
ACPI: add DMI entry for SCI_EN resume quirk on HP dv4

Fixes the missing battery on sleep problem for yet another HP laptop
("HP Pavilion dv4").

Fixes:
http://bugzilla.kernel.org/show_bug.cgi?id=13449

Signed-off-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoMerge branches 'misc', 'eeepc-laptop' and 'bugzilla-14445' into release
Len Brown [Thu, 5 Nov 2009 23:31:18 +0000 (18:31 -0500)]
Merge branches 'misc', 'eeepc-laptop' and 'bugzilla-14445' into release

15 years agothermal: sysfs-api.txt - document passive attribute for thermal zones
Frans Pop [Mon, 26 Oct 2009 07:39:00 +0000 (08:39 +0100)]
thermal: sysfs-api.txt - document passive attribute for thermal zones

Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agothermal: sysfs-api.txt - reformat for improved readability
Frans Pop [Mon, 26 Oct 2009 07:38:59 +0000 (08:38 +0100)]
thermal: sysfs-api.txt - reformat for improved readability

The document currently uses large indentations which make the text
too wide for easy readability. Also improve general consistency.

Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoacpi: thermal: Add EOL to the trip_point_N_type strings
Amit Kucheria [Fri, 16 Oct 2009 09:46:02 +0000 (12:46 +0300)]
acpi: thermal: Add EOL to the trip_point_N_type strings

Make the trip_point_N_type sysfs files return a string ending in EOL for
consistency with other sysfs files.

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: Move dereference after NULL test
Julia Lawall [Sat, 17 Oct 2009 06:34:39 +0000 (08:34 +0200)]
ACPI: Move dereference after NULL test

If the NULL test on pr is needed, then the dereference should be after the
NULL test.

A simplified version of the semantic match that detects this problem is as
follows (http://coccinelle.lip6.fr/):

// <smpl>
@match exists@
expression x, E;
identifier fld;
@@

* x->fld
  ... when != \(x = E\|&x\)
* x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."
Bob Moore [Thu, 22 Oct 2009 01:11:11 +0000 (09:11 +0800)]
ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."

Ensure that memory mappings created for operation regions
do not cross page boundaries.  Crossing a page boundary
while mapping regions can cause warnings if the pages have different attributes.

Such regions are probably BIOS bugs, and this is the workaround.

http://bugzilla.kernel.org/show_bug.cgi?id=14445

[Kernel summit hacking hour]

Signed-off-by: Bob Moore <robert.moore@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoACPI: add __cpuinit to acpi_processor_add()
Rakib Mullick [Thu, 5 Nov 2009 21:51:40 +0000 (16:51 -0500)]
ACPI: add __cpuinit to acpi_processor_add()

Annote acpi_processor_add with cpuinit since it calls a cpuinit function
acpi_processor_power_init and fixes a section mismatch warning.

 We were warned by the following warning:

 LD      drivers/acpi/processor.o
WARNING: drivers/acpi/processor.o(.text+0x1829): Section mismatch in
reference from the function acpi_processor_add() to the function
.cpuinit.text:acpi_processor_power_init()
The function acpi_processor_add() references
the function __cpuinit acpi_processor_power_init().
This is often because acpi_processor_add lacks a __cpuinit
annotation or the annotation of acpi_processor_power_init is wrong.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoMerge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Thu, 5 Nov 2009 21:24:15 +0000 (13:24 -0800)]
Merge branch 'kvm-updates/2.6.32' of git://git./virt/kvm/kvm

* 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: get_tss_base_addr() should return a gpa_t
  KVM: x86: Catch potential overrun in MCE setup

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
Linus Torvalds [Thu, 5 Nov 2009 21:23:29 +0000 (13:23 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: invalidate target of rename
  fuse: fix kunmap in fuse_ioctl_copy_user
  fuse: prevent fuse_put_request on invalid pointer

15 years agoMerge git://git.infradead.org/users/dwmw2/mtd-2.6.32
Linus Torvalds [Thu, 5 Nov 2009 21:23:16 +0000 (13:23 -0800)]
Merge git://git.infradead.org/users/dwmw2/mtd-2.6.32

* git://git.infradead.org/users/dwmw2/mtd-2.6.32:
  mtd/maps: gpio-addr-flash: depend on GPIO arch support
  mtd/maps: gpio-addr-flash: pull in linux/ headers rather than asm/
  mtd: nand: fix htmldocs warnings

15 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Thu, 5 Nov 2009 21:22:49 +0000 (13:22 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/kvm: Remove problematic BUILD_BUG_ON statement
  powerpc/pci: Fix regression in powerpc MSI-X
  powerpc: Avoid giving out RTC dates below EPOCH
  powerpc/mm: Remove debug context clamping from nohash code
  powerpc: Cleanup Kconfig selection of hugetlbfs support

15 years agox86: Make sure get_user_desc() doesn't sign extend.
Chris Lalancette [Thu, 5 Nov 2009 10:47:08 +0000 (11:47 +0100)]
x86: Make sure get_user_desc() doesn't sign extend.

The current implementation of get_user_desc() sign extends the return
value because of integer promotion rules.  For the most part, this
doesn't matter, because the top bit of base2 is usually 0.  If, however,
that bit is 1, then the entire value will be 0xffff...  which is
probably not what the caller intended.

This patch casts the entire thing to unsigned before returning, which
generates almost the same assembly as the current code but replaces the
final "cltq" (sign extend) with a "mov %eax %eax" (zero-extend).  This
fixes booting certain guests under KVM.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
Linus Torvalds [Thu, 5 Nov 2009 18:58:07 +0000 (10:58 -0800)]
Merge branch 'bugfix' of git://git./linux/kernel/git/jeremy/xen

* 'bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
  xen: mask extended topology info in cpuid
  xen/hvc: make sure console output is always emitted, with explicit polling

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Thu, 5 Nov 2009 18:57:39 +0000 (10:57 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  sysfs: Don't leak secdata when a sysfs_dirent is freed.

15 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 5 Nov 2009 18:56:47 +0000 (10:56 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c
  sched: Disable SD_PREFER_LOCAL at node level
  sched: Fix boot crash by zalloc()ing most of the cpu masks
  sched: Strengthen buddies and mitigate buddy induced latencies

15 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 5 Nov 2009 18:56:25 +0000 (10:56 -0800)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ftrace: Fix unmatched locking in ftrace_regex_write()
  ring-buffer: Synchronize resizing buffer with reader lock

15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 5 Nov 2009 18:54:08 +0000 (10:54 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, fs: Fix x86 procfs stack information for threads on 64-bit
  x86: Add reboot quirk for 3 series Mac mini
  x86: Fix printk message typo in mtrr cleanup code
  dma-debug: Fix compile warning with PAE enabled
  x86/amd-iommu: Un__init function required on shutdown
  x86/amd-iommu: Workaround for erratum 63

15 years agoMerge branch 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev
Linus Torvalds [Thu, 5 Nov 2009 18:53:49 +0000 (10:53 -0800)]
Merge branch 'for-linus' of git://linux-m32r.org/git/takata/linux-2.6_dev

* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev:
  m32r: Should index be positive?
  m32r: bzip2/lzma kernel compression support
  m32r: add NOTES to vmlinux.lds.S to remove .note.gnu.build-id section
  arch/m32r: Use DIV_ROUND_CLOSEST

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Linus Torvalds [Thu, 5 Nov 2009 18:53:24 +0000 (10:53 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: fix CECCs reporting
  amd64_edac: fix a wrong goto clause in amd64_edac.c

15 years agosgi-gru: decrapfiy options_write() function
Linus Torvalds [Thu, 5 Nov 2009 18:48:30 +0000 (10:48 -0800)]
sgi-gru: decrapfiy options_write() function

Not a single line of actual code in the function was really
fundamentally correct.

Problems ranged from lack of proper range checking, to removing the last
character written (which admittedly is usually '\n'), to not accepting
hex numbers even though the 'show' routine would show the data in that
format.

This tries to do better.

Acked-by: Michael Buesch <mb@bu3sch.de>
Tested-and-acked-by: Jack Steiner <steiner@sgi.com>
Cc: stable@kernel.org
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Michael Gilbert <michael.s.gilbert@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoALSA: hda, move hp_bseries_system
Randy Dunlap [Thu, 5 Nov 2009 17:22:30 +0000 (09:22 -0800)]
ALSA: hda, move hp_bseries_system

Function hp_bseries_system() is always used, outside of
CONFIG_ boundaries/controls, so move it.

sound/pci/hda/patch_sigmatel.c:5458: error: implicit declaration of function 'hp_bseries_system'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoacpi-power-meter: Don't leak ACPI error codes to userspace
Darrick J. Wong [Thu, 22 Oct 2009 01:01:37 +0000 (18:01 -0700)]
acpi-power-meter: Don't leak ACPI error codes to userspace

If the ACPI methods return an error code, we must return -EINVAL to userspace
to flag the error.  Right now we pass the (positive) number right through,
which causes echo to keep writing bogus values.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agosound: Use KERN_WARNING instead of KERN_WARN, which does not exist
Randy Dunlap [Thu, 5 Nov 2009 00:04:52 +0000 (16:04 -0800)]
sound: Use KERN_WARNING instead of KERN_WARN, which does not exist

Reported-by: Andrew Lyon <andrew.lyon@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: intel8x0: Mute External Amplifier by default for another Sony model
Daniel T Chen [Thu, 5 Nov 2009 02:03:46 +0000 (21:03 -0500)]
ALSA: intel8x0: Mute External Amplifier by default for another Sony model

BugLink: https://bugs.launchpad.net/bugs/474972
This Sony model needs External Amplifier muted for audible playback, so
make sure we set the inv_eapd quirk.

Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agopowerpc/kvm: Remove problematic BUILD_BUG_ON statement
Benjamin Herrenschmidt [Thu, 5 Nov 2009 06:10:34 +0000 (17:10 +1100)]
powerpc/kvm: Remove problematic BUILD_BUG_ON statement

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc/pci: Fix regression in powerpc MSI-X
Andre Detsch [Wed, 4 Nov 2009 15:03:19 +0000 (13:03 -0200)]
powerpc/pci: Fix regression in powerpc MSI-X

Patch f598282f5145036312d90875d0ed5c14b49fd8a7 exposed a problem in
powerpc MSI-X functionality, making network interfaces such as ixgbe
and cxgb3 stop to work when MSI-X is enabled. RX interrupts were not
being generated.

The problem was caused because MSI irq was not being effectively
unmasked after device initialization.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc: Avoid giving out RTC dates below EPOCH
Benjamin Herrenschmidt [Sun, 1 Nov 2009 19:11:03 +0000 (19:11 +0000)]
powerpc: Avoid giving out RTC dates below EPOCH

Doing so causes xtime to be negative which crashes the timekeeping
code in funny ways when doing suspend/resume

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc/mm: Remove debug context clamping from nohash code
Benjamin Herrenschmidt [Wed, 4 Nov 2009 13:39:52 +0000 (13:39 +0000)]
powerpc/mm: Remove debug context clamping from nohash code

I inadvertently left that debug code enabled, causing the number of
contexts to be clamped to 31 which is going to slow things down on
4xx and just plain breaks 8xx

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agosysfs: Don't leak secdata when a sysfs_dirent is freed.
Eric W. Biederman [Wed, 4 Nov 2009 10:50:06 +0000 (02:50 -0800)]
sysfs: Don't leak secdata when a sysfs_dirent is freed.

While refreshing my sysfs patches I noticed a leak in the secdata
implementation.  We don't free the secdata when we free the
sysfs dirent.

This is a bug in 2.6.32-rc5 that we really should close.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Wed, 4 Nov 2009 15:05:43 +0000 (07:05 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Ironlake suspend/resume support
  drm/i915: kill warning in intel_find_pll_g4x_dp
  drm/i915: update watermarks before enabling PLLs
  drm/i915: add FIFO watermark support for G4x
  drm/i915: quiet DP i2c init
  drm/i915: fix panel fitting filter coefficient select for Ironlake
  drm/i915: fix to setup display reference clock control on Ironlake
  drm/i915: Install a fence register for fbc on g4x
  drm/i915: save/restore BLC histogram control reg across suspend/resume
  drm/i915: Fix FDI M/N setting according with correct color depth
  drm/i915: disable powersave feature for Ironlake currently
  drm/i915: Fix render reclock availability detection.
  drm/i915: Save and restore the GM45 FBC regs on suspend and resume.
  drm/i915: Set the LVDS_BORDER when using LVDS scaling mode
  drm/i915: disable FBC for Pineview, fixing a boot hang.

15 years agoKVM: get_tss_base_addr() should return a gpa_t
Gleb Natapov [Sun, 25 Oct 2009 15:42:02 +0000 (17:42 +0200)]
KVM: get_tss_base_addr() should return a gpa_t

If TSS we are switching to resides in high memory task switch will fail
since address will be truncated. Windows2k3 does this sometimes when
running with more then 4G

Cc: stable@kernel.org
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: x86: Catch potential overrun in MCE setup
Jan Kiszka [Fri, 23 Oct 2009 07:37:00 +0000 (09:37 +0200)]
KVM: x86: Catch potential overrun in MCE setup

We only allocate memory for 32 MCE banks (KVM_MAX_MCE_BANKS) but we
allow user space to fill up to 255 on setup (mcg_cap & 0xff), corrupting
kernel memory. Catch these overflows.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
15 years agoamd64_edac: fix CECCs reporting
Borislav Petkov [Wed, 4 Nov 2009 13:04:06 +0000 (14:04 +0100)]
amd64_edac: fix CECCs reporting

Shift error type bits properly.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
15 years agoamd64_edac: fix a wrong goto clause in amd64_edac.c
Li Hong [Mon, 19 Oct 2009 08:33:29 +0000 (16:33 +0800)]
amd64_edac: fix a wrong goto clause in amd64_edac.c

In amd64_edac_init(void) in amd64_edac.c, cache_k8_northbridges() is
called before pci_register_driver. If it fails, should exit with err
directly.

Signed-off-by: Li Hong <lihong.hi@gmail.com>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
15 years agox86, fs: Fix x86 procfs stack information for threads on 64-bit
Stefani Seibold [Tue, 3 Nov 2009 09:22:40 +0000 (10:22 +0100)]
x86, fs: Fix x86 procfs stack information for threads on 64-bit

This patch fixes two issues in the procfs stack information on
x86-64 linux.

The 32 bit loader compat_do_execve did not store stack
start. (this was figured out by Alexey Dobriyan).

The stack information on a x64_64 kernel always shows 0 kbyte
stack usage, because of a missing implementation of the KSTK_ESP
macro which always returned -1.

The new implementation now returns the right value.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Cc: Americo Wang <xiyou.wangcong@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1257240160.4889.24.camel@wall-e>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoALSA: hda - Add OLPC XO-1.5 PCI ID
Daniel Drake [Wed, 4 Nov 2009 10:11:07 +0000 (10:11 +0000)]
ALSA: hda - Add OLPC XO-1.5 PCI ID

The XO-1.5 laptop now has a unique subvendor/subproduct ID, which can
be used to automatically select the correct CXT5066 configuration.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agofuse: invalidate target of rename
Miklos Szeredi [Wed, 4 Nov 2009 09:24:52 +0000 (10:24 +0100)]
fuse: invalidate target of rename

Invalidate the target's attributes, which may have changed (such as
nlink, change time) so that they are refreshed on the next getattr().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
15 years agofuse: fix kunmap in fuse_ioctl_copy_user
Jens Axboe [Tue, 3 Nov 2009 10:40:44 +0000 (11:40 +0100)]
fuse: fix kunmap in fuse_ioctl_copy_user

Looks like another victim of the confusing kmap() vs kmap_atomic() API
differences.

Reported-by: Todor Gyumyushev <yodor1@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
15 years agofuse: prevent fuse_put_request on invalid pointer
Anand V. Avati [Thu, 22 Oct 2009 13:24:52 +0000 (06:24 -0700)]
fuse: prevent fuse_put_request on invalid pointer

fuse_direct_io() has a loop where requests are allocated in each
iteration. if allocation fails, the loop is broken out and follows
into an unconditional fuse_put_request() on that invalid pointer.

Signed-off-by: Anand V. Avati <avati@gluster.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@kernel.org
15 years agoALSA: hda - Enable GPIO control for mute LED on HP systems
Vitaliy Kulikov [Wed, 4 Nov 2009 06:57:45 +0000 (07:57 +0100)]
ALSA: hda - Enable GPIO control for mute LED on HP systems

This patch enables GPIO to control mute LED indicator on the HP systems
with the special string in BIOS and applies it with the correct polarity on
HP B-series systems.

It also restores configuration of the pin intended as the second Headphone
on HP B-series systems but configured as something else in the BIOS to
pass MS DTM.

Signed-off-by: Vitaliy Kulikov <Vitaliy.Kulikov@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoftrace: Fix unmatched locking in ftrace_regex_write()
Li Zefan [Tue, 3 Nov 2009 00:55:38 +0000 (08:55 +0800)]
ftrace: Fix unmatched locking in ftrace_regex_write()

When a command is passed to the set_ftrace_filter, then
the ftrace_regex_lock is still held going back to user space.

 # echo 'do_open : foo' > set_ftrace_filter
 (still holding ftrace_regex_lock when returning to user space!)

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4AEF7F8A.3080300@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agoring-buffer: Synchronize resizing buffer with reader lock
Lai Jiangshan [Tue, 3 Nov 2009 11:42:45 +0000 (19:42 +0800)]
ring-buffer: Synchronize resizing buffer with reader lock

We got a sudden panic when we reduced the size of the
ringbuffer.

We can reproduce the panic by the following steps:

echo 1 > events/sched/enable
cat trace_pipe > /dev/null &

while ((1))
do
echo 12000 > buffer_size_kb
echo 512 > buffer_size_kb
done

(not more than 5 seconds, panic ...)

Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4AF01735.9060409@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Wed, 4 Nov 2009 02:16:21 +0000 (18:16 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cfq-iosched: limit coop preemption
  cfq-iosched: fix bad return value cfq_should_preempt()
  backing-dev: bdi sb prune should be in the unregister path, not destroy
  Fix bio_alloc() and bio_kmalloc() documentation
  bio_put(): add bio_clone() to the list of functions in the comment

15 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Wed, 4 Nov 2009 02:15:18 +0000 (18:15 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  sata_via: Remove redundant device ID for VIA VT8261
  drivers/ata/libata: Move dereference after NULL test
  ahci: Enable SB600 64bit DMA on MSI K9A2 Platinum v2

15 years agom32r: Should index be positive?
Roel Kluin [Sun, 1 Nov 2009 14:33:06 +0000 (15:33 +0100)]
m32r: Should index be positive?

Index `ipi_num' is signed, test whether it is negative to
make sure we don't get a negative array element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
15 years agom32r: bzip2/lzma kernel compression support
Hirokazu Takata [Thu, 15 Oct 2009 00:21:56 +0000 (09:21 +0900)]
m32r: bzip2/lzma kernel compression support

- Support bzip2 and lzma kernel compression for m32r.
- Clean up arch/m32r/boot/compressed/misc.c.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
15 years agom32r: add NOTES to vmlinux.lds.S to remove .note.gnu.build-id section
Hirokazu Takata [Sun, 4 Oct 2009 15:10:55 +0000 (00:10 +0900)]
m32r: add NOTES to vmlinux.lds.S to remove .note.gnu.build-id section

Building with --build-id option, .note.gnu.build-id section is added
to vmlinux.bin.  But some old buggy binutils creates a huge vmlinux.bin,
and a bootloader fails to boot its zImage as well.

This patch adds a NOTES macro to a linker script vmlinux.ld.S to put
.note.gnu.build-id section into .note section.
Then, the .note section will be removed, because "-R .note" option is
specified in OBJCOPYFLAGS to make a vmlinux.bin binary.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
15 years agoarch/m32r: Use DIV_ROUND_CLOSEST
Julia Lawall [Sun, 2 Aug 2009 08:47:27 +0000 (10:47 +0200)]
arch/m32r: Use DIV_ROUND_CLOSEST

The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

@depends on haskernel@
expression x,__divisor;
@@

- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
15 years agoLinux 2.6.32-rc6
Linus Torvalds [Tue, 3 Nov 2009 19:37:49 +0000 (11:37 -0800)]
Linux 2.6.32-rc6

15 years agosata_via: Remove redundant device ID for VIA VT8261
JosephChan@via.com.tw [Mon, 2 Nov 2009 11:36:08 +0000 (19:36 +0800)]
sata_via: Remove redundant device ID for VIA VT8261

Just remove redundant device ID for VIA VT8261.
The device ID 0x9000 and 0x9040 are redundant (for VT8261).
The 0x9040 is reserved for other usage.

Signed-off-by: Joseph Chan <josephchan@via.com.tw>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agodrivers/ata/libata: Move dereference after NULL test
Julia Lawall [Sat, 17 Oct 2009 06:41:47 +0000 (08:41 +0200)]
drivers/ata/libata: Move dereference after NULL test

In each case, if the NULL test on qc is needed, then the derefernce
should be after the NULL test.

A simplified version of the semantic match that detects this problem is as
follows (http://coccinelle.lip6.fr/):

// <smpl>
@match exists@
expression x, E;
identifier fld;
@@

* x->fld
  ... when != \(x = E\|&x\)
* x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoahci: Enable SB600 64bit DMA on MSI K9A2 Platinum v2
Mark Nelson [Tue, 3 Nov 2009 09:06:48 +0000 (20:06 +1100)]
ahci: Enable SB600 64bit DMA on MSI K9A2 Platinum v2

Like the Asus M2A-VM, MSI's K9A2 Platinum (MS-7376) can also support 64bit
DMA. It is a new enough board that all the BIOS releases work correctly with
64bit DMA enabled.

Signed-off-by: Mark Nelson <mdnelson8@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agocfq-iosched: limit coop preemption
Shaohua Li [Tue, 3 Nov 2009 19:25:02 +0000 (20:25 +0100)]
cfq-iosched: limit coop preemption

CFQ has an optimization for cooperated applications. if several
io-context have close requests, they will get boost. But the
optimization get abused. Considering thread a, b, which work on one
file. a reads sectors s, s+2, s+4, ...; b reads sectors s+1, s+3, s
+5, ... Both a and b are sequential read, so they can open idle window.
a reads a sector s and goes to idle window and wakeup b. b reads sector
s+1, since in current implementation, cfq_should_preempt() thinks a and
b are cooperators, b will preempt a. b then reads sector s+1 and goes to
idle window and wakeup a. for the same reason, a will preempt b and
reads s+2. a and b will continue the circle. The circle will be very
long, and a and b will occupy whole disk queue. Other applications will
nearly have no chance to run.

Fix this limiting coop preempt until a queue is scheduled normally
again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agocfq-iosched: fix bad return value cfq_should_preempt()
Jens Axboe [Tue, 3 Nov 2009 19:21:35 +0000 (20:21 +0100)]
cfq-iosched: fix bad return value cfq_should_preempt()

Commit a6151c3a5c8e1ff5a28450bc8d6a99a2a0add0a7 inadvertently reversed
a preempt condition check, potentially causing a performance regression.
Make the meta check correct again.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agobacking-dev: bdi sb prune should be in the unregister path, not destroy
Jens Axboe [Tue, 3 Nov 2009 19:18:44 +0000 (20:18 +0100)]
backing-dev: bdi sb prune should be in the unregister path, not destroy

Commit 592b09a42fc3ae6737a0f3ecf4fee42ecd0296f8 was different from
the tested path, in that it moved the bdi super_block prune from
unregister to destroy context. This doesn't fully fix the sync hang
bug on unexpected device removal, as need to prune the bdi cache
pointer before killing flusher thread.

Tested-by: Artur Skawina <art.08.09@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoMerge branch 'for-linus' of git://github.com/at91linux/linux-2.6-at91
Linus Torvalds [Tue, 3 Nov 2009 19:15:25 +0000 (11:15 -0800)]
Merge branch 'for-linus' of git://github.com/at91linux/linux-2.6-at91

* 'for-linus' of git://github.com/at91linux/linux-2.6-at91:
  at91: at91sam9g45 family: identify several chip versions
  avr32: add two new at91 to cpu.h definition

15 years agoxen: mask extended topology info in cpuid
Jeremy Fitzhardinge [Thu, 22 Oct 2009 23:41:15 +0000 (16:41 -0700)]
xen: mask extended topology info in cpuid

A Xen guest never needs to know about extended topology, and knowing
would just confuse it.

This patch just zeros ebx in leaf 0xb which indicates no topology info,
preventing a crash under Xen on cpus which support this leaf.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
15 years agoxen/hvc: make sure console output is always emitted, with explicit polling
Jeremy Fitzhardinge [Tue, 20 Oct 2009 06:28:21 +0000 (15:28 +0900)]
xen/hvc: make sure console output is always emitted, with explicit polling

We never want to rely on the hvc workqueue to emit output, because the
most interesting output is when the kernel is broken.  This will
improve oops/crash/console message for better debugging.

Instead, we force-poll until all output is emitted.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
15 years agoat91: at91sam9g45 family: identify several chip versions
Nicolas Ferre [Mon, 21 Sep 2009 10:03:56 +0000 (12:03 +0200)]
at91: at91sam9g45 family: identify several chip versions

cpu_is_xxx() macros are identifying generic at91sam9g45 chip. This patch adds
the capacity to differentiate Engineering Samples and final lots through the
inclusion of  at91_cpu_fully_identify() and the related chip IDs with chip
version field preserved.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
15 years agoavr32: add two new at91 to cpu.h definition
Nicolas Ferre [Mon, 6 Jul 2009 10:15:12 +0000 (12:15 +0200)]
avr32: add two new at91 to cpu.h definition

Somme common drivers will need those at91 cpu_is_xxx() definitions. As
at91sam9g10 and at91sam9g45 are on the way to linus' tree, here is the patch
that adds those chips to cpu.h in AVR32 architecture.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
15 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Tue, 3 Nov 2009 16:09:57 +0000 (08:09 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (38 commits)
  MIPS: O32: Fix ppoll
  MIPS: Oprofile: Rename cpu_type from godson2 to loongson2
  MIPS: Alchemy: Fix hang with high-frequency edge interrupts
  MIPS: TXx9: Fix spi-baseclk value
  MIPS: bcm63xx: Set the correct BCM3302 CPU name
  MIPS: Loongson 2: Set cpu_has_dc_aliases and cpu_icache_snoops_remote_store
  MIPS: Avoid potential hazard on Context register
  MIPS: Octeon: Use lockless interrupt controller operations when possible.
  MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinity
  MIPS: Set S-cache linesize to 64-bytes for MTI's S-cache
  MIPS: SMTC: Avoid queing multiple reschedule IPIs
  MIPS: GCMP: Avoid accessing registers when they are not present
  MIPS: GIC: Random fixes and enhancements.
  MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_start
  MIPS: Fix abs.[sd] and neg.[sd] emulation for NaN operands
  MIPS: SPRAM: Clean up support code a little
  MIPS: 1004K: Enable SPRAM support.
  MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4
  MIPS: Kconfig: Fix duplicate default value for MIPS_L1_CACHE_SHIFT.
  MIPS: MTI: Fix accesses to device registers on MIPS boards
  ...

15 years agoMerge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro...
Ingo Molnar [Tue, 3 Nov 2009 15:54:14 +0000 (16:54 +0100)]
Merge branch 'iommu/fixes' of git://git./linux/kernel/git/joro/linux-2.6-iommu into x86/urgent

15 years agoMerge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspe...
Linus Torvalds [Tue, 3 Nov 2009 15:52:57 +0000 (07:52 -0800)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6

* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM: Remove some debug messages producing too much noise
  PM: Fix warning on suspend errors
  PM / Hibernate: Add newline to load_image() fail path
  PM / Hibernate: Fix error handling in save_image()
  PM / Hibernate: Fix blkdev refleaks
  PM / yenta: Split resume into early and late parts (rev. 4)

15 years agoCorrect nr_processes() when CPUs have been unplugged
Ian Campbell [Tue, 3 Nov 2009 10:11:14 +0000 (10:11 +0000)]
Correct nr_processes() when CPUs have been unplugged

nr_processes() returns the sum of the per cpu counter process_counts for
all online CPUs. This counter is incremented for the current CPU on
fork() and decremented for the current CPU on exit(). Since a process
does not necessarily fork and exit on the same CPU the process_count for
an individual CPU can be either positive or negative and effectively has
no meaning in isolation.

Therefore calculating the sum of process_counts over only the online
CPUs omits the processes which were started or stopped on any CPU which
has since been unplugged. Only the sum of process_counts across all
possible CPUs has meaning.

The only caller of nr_processes() is proc_root_getattr() which
calculates the number of links to /proc as
        stat->nlink = proc_root.nlink + nr_processes();

You don't have to be all that unlucky for the nr_processes() to return a
negative value leading to a negative number of links (or rather, an
apparently enormous number of links). If this happens then you can get
failures where things like "ls /proc" start to fail because they got an
-EOVERFLOW from some stat() call.

Example with some debugging inserted to show what goes on:
        # ps haux|wc -l
        nr_processes: CPU0:     90
        nr_processes: CPU1:     1030
        nr_processes: CPU2:     -900
        nr_processes: CPU3:     -136
        nr_processes: TOTAL:    84
        proc_root_getattr. nlink 12 + nr_processes() 84 = 96
        84
        # echo 0 >/sys/devices/system/cpu/cpu1/online
        # ps haux|wc -l
        nr_processes: CPU0:     85
        nr_processes: CPU2:     -901
        nr_processes: CPU3:     -137
        nr_processes: TOTAL:    -953
        proc_root_getattr. nlink 12 + nr_processes() -953 = -941
        75
        # stat /proc/
        nr_processes: CPU0:     84
        nr_processes: CPU2:     -901
        nr_processes: CPU3:     -137
        nr_processes: TOTAL:    -954
        proc_root_getattr. nlink 12 + nr_processes() -954 = -942
          File: `/proc/'
          Size: 0               Blocks: 0          IO Block: 1024   directory
        Device: 3h/3d   Inode: 1           Links: 4294966354
        Access: (0555/dr-xr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
        Access: 2009-11-03 09:06:55.000000000 +0000
        Modify: 2009-11-03 09:06:55.000000000 +0000
        Change: 2009-11-03 09:06:55.000000000 +0000

I'm not 100% convinced that the per_cpu regions remain valid for offline
CPUs, although my testing suggests that they do. If not then I think the
correct solution would be to aggregate the process_count for a given CPU
into a global base value in cpu_down().

This bug appears to pre-date the transition to git and it looks like it
may even have been present in linux-2.6.0-test7-bk3 since it looks like
the code Rusty patched in http://lwn.net/Articles/64773/ was already
wrong.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Tue, 3 Nov 2009 15:46:17 +0000 (07:46 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: gpio-keys - use IRQF_SHARED
  Input: winbond-cir - select LEDS_TRIGGERS
  Input: i8042 - try to get stable CTR value when initializing
  Input: atkbd - add a quirk for OQO 01+ multimedia keys

15 years agoMerge branch 'fixes-s3c-2632-rc5' of git://git.fluff.org/bjdooks/linux
Linus Torvalds [Tue, 3 Nov 2009 15:46:05 +0000 (07:46 -0800)]
Merge branch 'fixes-s3c-2632-rc5' of git://git.fluff.org/bjdooks/linux

* 'fixes-s3c-2632-rc5' of git://git.fluff.org/bjdooks/linux:
  ARM: S3C2410: Fix sparse warnings in arch/arm/mach-s3c2410/gpio.c
  ARM: S3C2440: mini2440: Fix spare warnings
  ARM: S3C24XX: Fix warnings in arch/arm/plat-s3c24xx/gpio.c
  ARM: S3C2440: mini2440: Fix missing CONFIG_S3C_DEV_USB_HOST
  ARM: S3C24XX: arch/arm/plat-s3c24xx: Move dereference after NULL test
  ARM: S3C: Fix adc function exports
  ARM: S3C2410: Fix link if CONFIG_S3C2410_IOTIMING is not set
  ARM: S3C24XX: Introduce S3C2442B CPU
  ARM: S3C24XX: Define a macro to avoid compilation error
  ARM: S3C: Add info for supporting circular DMA buffers
  ARM: S3C64XX: Set rate of crystal mux
  ARM: S3C64XX: Fix S3C64XX_CLKDIV0_ARM_MASK value

15 years agoMerge branch 'i2c-fixes' of git://git.fluff.org/bjdooks/linux
Linus Torvalds [Tue, 3 Nov 2009 15:45:50 +0000 (07:45 -0800)]
Merge branch 'i2c-fixes' of git://git.fluff.org/bjdooks/linux

* 'i2c-fixes' of git://git.fluff.org/bjdooks/linux:
  i2c-mpc: Do not generate STOP after read.
  i2c: imx: disable clock when it's possible to save power.
  i2c: imx: only imx1 needs disable delay
  i2c: imx: check busy bit when START/STOP

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Tue, 3 Nov 2009 15:45:22 +0000 (07:45 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: add zero-fill for new btree node buffers
  nilfs2: fix irregular checkpoint creation due to data flush
  nilfs2: fix dirty page accounting leak causing hang at write

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 3 Nov 2009 15:44:01 +0000 (07:44 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  mac80211: check interface is down before type change
  cfg80211: fix NULL ptr deref
  libertas if_usb: Fix crash on 64-bit machines
  mac80211: fix reason code output endianness
  mac80211: fix addba timer
  ath9k: fix misplaced semicolon on rate control
  b43: Fix DMA TX bounce buffer copying
  mac80211: fix BSS leak
  rt73usb.c : more ids
  ipw2200: fix oops on missing firmware
  gre: Fix dev_addr clobbering for gretap
  sky2: set carrier off in probe
  net: fix sk_forward_alloc corruption
  pcnet_cs: add cis of PreMax PE-200 ethernet pcmcia card
  r8169: Fix card drop incoming VLAN tagged MTU byte large jumbo frames
  ibmtr: possible Read buffer overflow?
  net: Fix RPF to work with policy routing
  net: fix kmemcheck annotations
  e1000e: rework disable K1 at 1000Mbps for 82577/82578
  e1000e: config PHY via software after resets
  ...

15 years agoeeepc-laptop: don't enable camera at startup if it's already on.
Luca Niccoli [Fri, 16 Oct 2009 20:22:47 +0000 (22:22 +0200)]
eeepc-laptop: don't enable camera at startup if it's already on.

Switching the camera takes 500ms, checking if it's on is almost free...
The BIOS remembers the setting through reboots, so there's good chance the
camera is already enabled.

Signed-off-by: Luca Niccoli <lultimouomo@gmail.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoRevert "eeepc-laptop: Prevent a panic when disabling RT2860 wireless when associated"
Corentin Chary [Fri, 16 Oct 2009 20:22:46 +0000 (22:22 +0200)]
Revert "eeepc-laptop: Prevent a panic when disabling RT2860 wireless when associated"

rt2860sta is fine with the patch as is, but iwl3945 isn't
(eeepc_rfkill_set() needs to call eeepc_rfkill_hotplug(true) – which means
that we're back to causing the rt2860sta panic

This reverts commit b56ab33d68638e6aafdbfc694025e8354a628f49.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>